Description
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Product Model | E33NRHA-LNN-NS-00 |
| Manufacturer | Kollmorgen / Pacific Scientific |
| Product Family | E Hybrid Stepper Motor |
| Motor Type | Hybrid step motor |
| Frame Size | NEMA 34 |
| Frame Diameter | 3.38 in nominal |
| Rotor Stack | 3 stacks |
| Step Angle | 1.8° |
| Winding | 4-lead parallel |
| Shaft | Single, smooth shaft |
| Mounting | NEMA |
| Insulation | Class B, 130°C |
| Technology | SIGMAX / PowerMax II family |
| Holding Torque | Approximately 7 N·m, depending on drive/current conditions |
| Typical Speed | Up to approximately 3,000 RPM in published secondary specifications |
| Protection | Verify application-specific motor/drive installation |
The available technical references consistently identify E33NRHA-LNN-NS-00 as a hybrid stepper motor, not a PLC, DCS, analog-input module, or servo drive. A distributor reference describes it as a NEMA 34, three-stack E-Series motor with four-lead parallel windings and a smooth shaft. Another specialist listing identifies the motor with approximately 7 N·m torque, 3,000 RPM, 24/48 VDC operation, and IP65, but these should be treated as application-level specifications until matched to the motor’s original datasheet/nameplate.
Product Introduction
The Kollmorgen E33NRHA-LNN-NS-00 is a legacy E-Series hybrid stepper motor from the Pacific Scientific/Kollmorgen motion-control family. It uses a NEMA 34 mechanical frame, three rotor stacks, four-lead parallel windings, and a single smooth shaft. The motor is intended for controlled incremental positioning rather than continuous-duty induction-motor applications.
This model is particularly relevant when maintaining older machine axes where the original motor and stepper drive have already been matched. The motor’s electrical characteristics, winding configuration, current setting, and mechanical mounting all need to remain compatible with the controller. Replacing it with a visually similar NEMA 34 motor without checking the winding and torque requirements can produce missed steps, overheating, or poor positioning performance.
E33NRHA-LNN-NS-00
Application Scenarios & Field Pitfalls
Engineering Pain Point
For legacy stepper systems, the motor and drive should be treated as a matched pair. The E33NRHA-LNN-NS-00 is not simply interchangeable with every NEMA 34 stepper motor. Its winding configuration and electrical requirements must agree with the existing stepper amplifier.
Typical Applications
- CNC and machine-tool positioning axes
- Packaging and material-handling equipment
- Factory automation positioning mechanisms
- OEM machinery using Pacific Scientific/Kollmorgen E-Series stepper drives
The E-Series motor family is documented for industrial motion applications, while current secondary references specifically associate this model with NEMA 34 positioning applications.
Technical Pitfalls to Avoid
- Do not confuse the motor with a servo drive. E33NRHA-LNN-NS-00 is the motor; it requires an appropriate stepper amplifier/controller.
- Verify winding configuration. The published identification specifies four-lead parallel winding. A drive configured for a different winding arrangement may produce incorrect current or torque behavior.
- Check mechanical dimensions before substitution. NEMA 34 identifies the frame class, but shaft length, shaft diameter, mounting pattern, and overall motor length still need to match the installed machine.
- Verify electrical ratings from the nameplate. Some online listings provide 24/48 VDC and approximately 7 N·m figures, but those values should not replace the original Kollmorgen/Pacific Scientific motor data for a safety-critical replacement.
Related Products
- Kollmorgen E33NCHA-LNN-NS-00 — Related E-Series hybrid stepper motor; compare winding and mechanical configuration before substitution.
- Kollmorgen E22SSLT-LNN-NS-04 — Another E-Series motor with a different mechanical/electrical configuration.
- Kollmorgen E-Series Hybrid Stepper Motors — Same general motor family with different frame, stack, winding, and shaft options.
- Pacific Scientific PowerMax II motors — Legacy motor family associated with the same motion-control product lineage.
- Kollmorgen P7000 Series Drives — Stepper drive family suitable for applications using compatible E-Series motors; drive current and motor winding must be matched.
- Kollmorgen P70530 — Related stepper-drive hardware for legacy PowerMax/E-Series motion applications.
- Kollmorgen P70630 — Higher-capacity stepper-drive option; suitability depends on motor current and application requirements.
- Kollmorgen AKM Series — Servo-motor family for applications requiring closed-loop servo control rather than conventional hybrid stepper operation.
Procurement Check
For E33NRHA-LNN-NS-00, verify the complete suffix rather than purchasing only an “E33” motor. The NEMA 34 frame, three-stack configuration, four-lead parallel winding, smooth shaft, and exact mechanical dimensions should be checked against the existing motor. The available references also show that this model is associated with the Kollmorgen/Pacific Scientific E-Series / PowerMax II family, so the original stepper amplifier’s model and current configuration are important procurement information.
